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CN103356300A - Impression tray for local area - Google Patents

Impression tray for local area Download PDF

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Publication number
CN103356300A
CN103356300A CN2013101104018A CN201310110401A CN103356300A CN 103356300 A CN103356300 A CN 103356300A CN 2013101104018 A CN2013101104018 A CN 2013101104018A CN 201310110401 A CN201310110401 A CN 201310110401A CN 103356300 A CN103356300 A CN 103356300A
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CN
China
Prior art keywords
wall
hole
inwall
elongation
height
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CN2013101104018A
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CN103356300B (en
Inventor
丸森英史
蒲原敬
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GC Corp
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GC Corp
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00Impression cups, i.e. impression trays; Impression methods
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00Impression cups, i.e. impression trays; Impression methods
    • A61C9/0006Impression trays

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Prosthetics (AREA)

Abstract

The invention provides a plastic impression tray for a local area which is made of a plastic, can prevent a set impression material from floating upward from the tray and being peeled off from the tray, and can be used for taking an impression in a local area within an oral cavity. The plastic impression tray has an outer wall provided in an outer side of a curve of a bottom portion, and an inner wall provided in an inner side of the curve of the bottom portion. The inner and outer walls height gradually reduce on both end so as to flush with the bottom portion. Said the bottom portion is approximately flat and forming a gentle curved shape along a length corresponding to at least three continuous teeth. A rim having a particular height is provided in the bottom portion side along each of upper ends of the outer wall and the inner wall, elongated through holes each reaching the bottom portion from a portion just below the rim are formed approximately at uniform distances in the outer wall and the inner wall, circular through holes each in the bottom portion, and elongated end portion side through holes are provided vertically to an axial direction of the bottom portion, in both ends of the bottom portion.

Description

The impression tray that is used for regional area
Technical field
The present invention relates to a kind of plastic die pallet for regional area, the die that is used for obtaining intraoral regional area is as the preparatory stage of producing part artificial tooth as the prosthetic appliance of dentistry, bridge, inlay etc., the impression tray that wherein the is used for regional area impression material that can prevent from hardening upwards floats and is peeled off from pallet from pallet, and therefore can obtain die with high accuracy.
Background technology
In Dental Hygienist, use impression material such as silicone impression material or alginate impression material, be used for obtaining intraoral die as the preparatory stage of producing prosthetic appliance.For this impression material is inserted and remains in the oral cavity, use impression tray.In die is obtained, impression material is loaded in the impression tray, thereby impression material is inserted in patient's the oral cavity, impression material is pressed onto and will be performed in the patient's that die obtains the oral cavity, with impression material sclerosis, and remain under the state in the impression tray impression material integratedly from patient's oral cavity taking-up at the impression material that will harden afterwards.
When taking out the sclerosis impression material from the oral cavity, must very large power.As a result, there are the following problems: the sclerosis impression material upwards floats and is peeled off from impression tray from impression tray, thereby produces the air gap between impression tray and impression material.In the situation that produces the air gap, usually be following situation: impression material is out of shape from initial hardening state, and significantly reduces the precision of the dental prosthesis device of preparation.In addition, because impression material has the characteristic that after sclerosis reaction and the volatilization of moisture make the impression material contraction, in the situation that impression material is peeled off from impression tray, impression material is subjected to the impact of this contraction very large, has further reduced thus the precision of dental prosthesis device.Therefore, for impression tray, thus can be indeformablely very important from the performance that take out in patient's oral cavity with being inserted into the impression material that hardens in patient's the oral cavity.
Usually, impression tray is provided with retaining hole or the groove that keeps the sclerosis impression material for machinery.In other words, the impression material cream before sclerosis enters into retaining hole and sclerosis, makes thus sclerosis impression material and pallet mechanical engagement.Especially, owing to the sclerosis impression material trends towards being stripped from the circumference of pallet, so carry out the application that forms undercut portions (rib) along the circumference of pallet.Yet, because the impression material of q.s can not enter into undercut portions, peel off so trend towards in circumference, producing.In addition, impression tray is made by metal or plastics, and by as mentioned above processing, can easily make metal tray form the undercut portions of the height with 1.5mm to 2.5mm in circumference.On the other hand, owing to plastic pallet is exposed for the metal die impact of producing pallet and can not takes out moulded tray, so can not make plastic pallet form the undercut portions with effective depth.Therefore, particularly in the impression tray that is made of plastics, following problem occurs: large from peeling off of the pallet circumference of pallet, and distortion becomes large.
As the impression tray that is made of plastics, there is a kind of dental impression tray, this dental impression tray is provided with and is used to form the diapire that impression material keeps recess, inner and outer wall, this impression material keeps recess to be similar to the denture shape, and this impression material keeps recess to be formed curved shape in plane graph, this dental impression tray is provided with handle portion, this handle portion extends forward from the side of the nipper diapire or outer wall, and this dental impression tray is provided with many impression material retaining holes at least in the inner and outer wall of recess, described impression material retaining hole stops relatively moving (for example, referring to Japanese unexamined patent publication JP 2000-135227 of impression material on whole surface; Hereinafter be called patent document 1).Patent document 1 illustration a kind of structure, in this structure, the impression material retaining hole that is arranged in interior and the outer opposed walls is elongated hole, these elongated hole in the vertical directions are elongated shape, and these elongated hole penetrate (with reference to claim 2) at the inside and outward direction of recess, and be arranged on impression material retaining hole in the front flank of outer wall and be arranged among the diapire of recess or handle portion or both, and be communicated with (with reference to claim 3) to penetrate mode.Yet, patent document 1 only be illustrated in be arranged on as mentioned above in the interior and outer opposed walls and the impression material retaining hole of in the vertical direction elongation in the very short structure of distance between in the accompanying drawings the adjacent elongated hole, and in patent document 1, do not have any disclosure of the width of distance between the adjacent elongated hole and elongated hole.In addition, the impression material retaining hole with circular cross-sectional shape is set in diapire, yet, disclose bore dia at all and have distance between the adjacent impression material retaining hole of circular cross-sectional shape.In addition, disclosed pallet only is arranged for the whole die of obtaining intraoral maxillary and lower jaw, and does not have the open structure of the die of intraoral regional area as the preparatory stage of production part artificial tooth, bridge, inlay etc. that be used for obtaining.
Therefore, the impression material retaining hole from above-mentioned patent document 1 unknown what size can fully keep impression material.Be used for obtaining the pallet of the die of intraoral regional area as the preparatory stage of production part artificial tooth, bridge, inlay etc., the impression material retaining hole comprise be arranged in and in the outer opposed walls and in the vertical direction be the impression material retaining hole of elongated shape and be arranged in the diapire and have the impression material retaining hole of circular cross-sectional shape.In addition, any device that does not have the defective that trends towards being stripped from for the impression material of elimination at the two ends of pallet.
Summary of the invention
The problem that the present invention solves
The purpose of this invention is to provide a kind of plastic die pallet for regional area, be used for obtaining the die of intraoral regional area as the preparatory stage of production as part artificial tooth, bridge or the inlay of the prosthetic appliance of dentistry, wherein the impression tray impression material that can prevent from hardening upwards floats and is peeled off from pallet from pallet, and therefore can obtain die with high accuracy.
The means of dealing with problems
The present inventor has been absorbed in the research that addresses the above problem.The result, the inventor has probed into the fact that can address the above problem by following means: will form following shape for the global shape of the plastic die pallet of regional area, this shape has outer wall, described outer wall is erect from the outside of the bending of bottom and is arranged, described bottom is formed and the similar broad warp shape of alveolar ridge shape, and described bottom forms at the corresponding length place of three continuous teeth of patient at least has roughly the evenly roughly plane surface of width, and described outer wall at one end reduces the height of described outer wall in the side gradually, thereby reach the height identical with the height of described bottom, and this shape has inwall, described inwall is erect via the circular arc shaped part from the inboard of the bending of described bottom and is arranged, described inwall leaves the direction inclination of described bottom with respect to the upper end simultaneously, and described inwall all reduces the height of described inwall at two in distolateral gradually, thereby reaches the height identical with the height of described bottom; Along each upper end of described outer wall and described inwall, in described bottom side, set the edge of the height with 0.01mm to 1mm; In described outer wall and described inwall with roughly evenly the interval form the elongation through hole, each the elongation through hole all part under the described edge arrives described bottom, and each elongation through hole all has the width of 1.5mm to 4.0mm, forms the mode of described elongation through hole so that the distance between the adjacent through-holes is 2 to 5 times of width of described through hole; With in described bottom, the centre at the interval of the adjacent elongation through hole in being arranged on described outer wall and described inwall forms manhole, and each manhole all has the diameter of 3mm to 6mm; With such as lower straight line near the end near side in set elongation end side through hole perpendicular to the axial direction of the bending of described bottom, described straight line will be arranged in described outer wall and be connected the connecting near the bottom side end of respectively extending through hole of side of end of inwall in the two ends of described bottom, each elongation end side through hole all has the length of width and the 5mm to 15mm of 1.0mm to 3.0mm, and the inventor has finished the present invention.
In said structure, the inventor has probed into the following fact, namely preferably: the width that is arranged on the described elongation through hole in described outer wall and the described inwall is 2.0mm to 3.0mm, length is 2 to 3 times of described width, be arranged on the 3mm to 18mm that is spaced apart between the described elongation through hole in described outer wall and the described inwall, the height at described edge is 1mm to 0.3mm, and the edge of the height with 0.01mm to 1mm is set in the opposition side of described bottom along each described upper end of described outer wall and described inwall.
In other words, according to the present invention, a kind of plastic die pallet for regional area is provided, this impression tray has: outer wall, described outer wall is erect from the outside of the bending of bottom and is arranged, described bottom is formed and the similar broad warp shape of alveolar ridge shape, and described bottom forms at the corresponding length place of three continuous teeth of patient at least has roughly the evenly roughly plane surface of width, and described outer wall at one end reduces the height of described outer wall in the side gradually, thereby reaches the height identical with the height of described bottom; And inwall, described inwall is erect via the circular arc shaped part from the inboard of the bending of described bottom and is arranged, described inwall leaves the direction inclination of described bottom with respect to the upper end simultaneously, and described inwall all reduces the height of described inwall at two in distolateral gradually, thereby reaches the height identical with the height of described bottom; Wherein along each upper end of described outer wall and described inwall, the edge of the height with 0.01mm to 1mm is set in described bottom side; In described outer wall and described inwall with roughly evenly the interval form the elongation through hole, each the elongation through hole all part under the described edge arrives described bottom, each elongation through hole has the width of 1.5mm to 4.0mm, forms the mode of described elongation through hole so that the distance between the adjacent through-holes is 2 to 5 times of width of described through hole; In described bottom, the centre at the interval of the adjacent elongation through hole in being arranged on described outer wall and described inwall forms manhole, and each manhole all has the diameter of 3mm to 6mm; And such as lower straight line near the end near side in perpendicular to the axial direction of the bending of described bottom elongation end side through hole is set, described straight line will be arranged in described outer wall and be connected the connecting near the bottom side end of respectively extending through hole of side of end of inwall in the two ends of described bottom, each elongation end side through hole all has the length of width and the 5mm to 15mm of 1.0mm to 3.0mm.At the impression tray that is used for regional area, preferably: the width that is arranged on the described elongation through hole in described outer wall and the described inwall is 2.0mm to 3.0mm, length is 2 to 3 times of described width, be arranged on the 3mm to 18mm that is spaced apart between the described elongation through hole in described outer wall and the described inwall, the height at described edge is 1mm to 0.3mm, and has the edge of the height of 0.01mm to 1mm the opposition side setting of bottom along each upper end of outer wall and inwall.
The effect of invention
Since according to the present invention for local region is formed to have impression tray is formed from the alveolar ridge with a gentle curved shape similar to the shape and the patient's teeth, at least three consecutive formed having a length corresponding substantially uniform width substantially flat bottom surface of the erected outer curved side of the one end and gradually decreases in height so as to achieve the same height of the bottom wall and the height from the bottom of the inside of the bend of the arc-shaped portion is erected by the same upper left with respect to the direction of inclination of said bottom side and the two are gradually reduced in height so as to achieve and the same height as the bottom of the inner wall of the impression tray shape and made of plastic, and with the impression tray in a local area along said outer wall and said inner wall is provided on each of the upper side of said bottom having preferably from 0.01mm to 0.1mm to 0.3mm 1mm height edge, the edge portion of the bottom be undercuts, thus cured impression material are difficult to float up and peeled off from the tray.In addition, because the height at edge is 0.01mm to 1mm and low, so the edge does not form from the obstacle of metal die unloading when injection-molded.In addition, owing to be that 2 to 5 times mode of the width of through hole is shown greatly even interval and formed each all through hole of arriving the bottom and being formed the elongated hole of the width with 1.5mm to 4.0mm of the part under the edge in outer wall and inwall with the distance between the adjacent through-holes, thereby so when in pallet, loading intraoral desired locations that silicone impression material or alginate impression material be depressed into the patient and obtaining die thus, impression material suitably enters into through hole, and keep the sclerosis impression material, thereby sclerosis impression tray material is difficult to upwards float and peeled off from pallet.In addition, form the manhole that each all has the diameter of 3mm to 6mm owing in described bottom, be arranged on the centre at the interval of the described adjacent elongation through hole in described outer wall and the described inwall, thereby so when in pallet, loading silicone impression material or alginate impression material and in patient's oral cavity, being depressed into desired locations and obtaining die thus, impression material enters into manhole, thereby keeps the sclerosis impression material.Yet, because not being present in to connect, manhole is not arranged on the straight line of the elongation through hole in outer wall and the inwall, so the impression material that is loaded in the same section in the pallet is not released the outside of pallet by the elongation through hole from be arranged on outer wall and inwall and the manhole that is arranged in the bottom simultaneously, and does not produce any space in the sclerosis impression material.In addition, because than being arranged in described outer wall in will the two ends in described bottom and being connected the straight line that connects near the bottom side end of respectively extending through hole of side of end of inwall near the elongation end side through hole that the length of each width that all has 1.0mm to 3.0mm and 5mm to 15mm is set perpendicular to the axial direction of the bending of described bottom near side of end, so the impression material that is loaded in the pallet enters into the elongation end side through hole of two ends that are arranged on the bottom, thereby is firmly kept.Therefore, be not created in the impression material defective that trends towards being stripped from two ends of bottom.
In addition, at above-mentioned impression tray for regional area, the width of the elongation through hole in being arranged on outer wall and inwall is that 2.0mm to 3.0mm, its length are that 2 to 3 times of width and the distance that is arranged between the elongation through hole in outer wall and the inwall are in the situation of 3mm to 18mm, when die is obtained, the elongation through hole keeps impression material better, and the sclerosis impression material is difficult to upwards float and peeled off from pallet.In addition, have the setting of the opposition side of bottom in each upper end along outer wall and inwall in the situation at edge of height of 0.01mm to 1mm, the thickness of each upper end of outer wall and inwall increases, and its intensity improves.But the increase of thickness does not form from the obstacle of metal die unloading when injection-molded.
Description of drawings
Fig. 1 is the plane graph according to the embodiment of the impression tray for regional area of the present invention;
Fig. 2 is the back view of the impression tray that is used for regional area shown in Fig. 1;
Fig. 3 is the right hand view of the impression tray that is used for regional area shown in Fig. 1;
Fig. 4 is the amplification end view drawing along the line A-A among Fig. 1; And
Fig. 5 is the perspective view of the impression tray that is used for regional area shown in Fig. 1.
Description of reference numerals
Figure BDA00002996851500071
The specific embodiment
Impression tray for regional area according to the present invention is the plastic die pallet for regional area, this impression tray has: bottom 1, this bottom 1 is formed and the similar broad warp shape of alveolar ridge shape, and bottom 1 forms at the corresponding length place of three continuous teeth of patient at least and has roughly the evenly roughly plane surface of width; The outside of outer wall 2, this outer wall 21 the bending from the bottom is erect and is arranged, and outer wall 2 at one end reduces the height of outer wall 2 in the side gradually, thereby has the height identical with bottom 1; With inwall 3, the inboard of 1 bending arranges via circular arc shaped part 3a setting this inwall 3 from the bottom in the same manner, simultaneously inwall 3 direction of leaving bottom 1 with respect to the upper end tilts, and inwall 3 all reduces the height of inwall 3 at two in distolateral gradually, thereby reaches the height identical with bottom 1.In addition, along outer wall 2 and inwall 3 each the upper end, in 1 side of bottom, edge 4 is set, this edge 4 has the height of the preferred 0.1mm to 0.3mm of 0.01mm to 1mm.Edge 4 is set is used for below edge 4, forming undercut portions, thereby produce the effect that the impression material that prevents from hardening upwards floats and peeled off from pallet.If the height at edge 4 less than 0.01mm, then can not expect to form the effect of undercut portions, and if should highly surpass 1mm, because the too high height at edge 4, when the injection-molded of pallet, the edge forms from the obstacle of metal die unloading, and can not carry out well injection-molded.In addition, further arrange in the opposition side of bottom 1 in each upper end along outer wall 2 and inwall 3 in the situation at edge 4 ' of the height with 0.01mm to 1mm, the thickness of each upper end of outer wall 2 and inwall 3 increases and its intensity improves.But edge 4 ' does not form from the obstacle of metal die unloading when injection-molded, and edge 4 ' preferably is set.
Reference numeral 5 indication elongation through holes arrange this elongation through hole in outer wall 2 and inwall 3, and this elongation through hole has bottom the part arrival under the edge 4 width of 1 1.5mm to 4.0mm.Through hole 5 is formed so that the distance between the adjacent through-holes 5 is substantially equal to 2 to 5 times of width of through hole 5.If the width of elongation through hole 5 is less than 1.5mm, silicone impression material or alginate impression material are being loaded in the pallet and thereby patient's intraoral desired locations is being pushed when obtaining die, impression material enters into through hole 5 inadequately, and produces the phenomenon that can not keep hardening impression material and sclerosis impression material come off.Therefore, this width is not preferred.If width surpasses 4.0mm, only by silicone impression material or alginate impression material being loaded in the pallet and patient's intraoral desired locations being pushed insufficient pressure.Thereby, can not accurately obtain die, therefore, this width is not preferred.In addition, if the distance between through hole 5 and the adjacent through-holes 5 less than the twice of the width of through hole 5, then adjacent through-holes 5 is too approaching each other.Therefore, thus silicone impression material or alginate impression material are being loaded in the pallet and patient's intraoral desired locations are being pushed when obtaining die insufficient pressure.Therefore, can not accurately obtain die.In addition, if this distance surpasses 5 times, then adjacent through-holes 5 is too far away each other.Therefore, do not produce following effect: thus silicone impression material or alginate impression material being loaded in the pallet and patient's intraoral desired locations being pushed when obtaining die, thereby fully entering into through hole 5, impression material is held.Therefore, this distance is not preferred.Particularly preferably be: the width of elongation through hole 5 is 2.0mm to 3.0mm, and the length of through hole 5 is 2 to 3 times of width, and the distance between the adjacent through-holes 5 is 3mm to 18mm.
Reference numeral 6 indication manholes, this manhole is formed on the bottom 1 of the centre at the interval that is arranged in the adjacent elongation through hole 5 that is arranged on outer wall 2 and inwall 3, and this manhole has the diameter of 3mm to 6mm.Manhole 6 must be formed on the bottom 1 of the centre at the interval that is arranged in the adjacent elongation through hole 5 that is arranged on outer wall 2 and inwall 3, this be because: thereby silicone impression material or alginate impression material are being loaded in the pallet and patient's intraoral desired locations are being pushed when obtaining die, the impression material that is loaded in the same position in the pallet enters into simultaneously elongation through hole 5 and manhole 6 and is pushed out pallet, in the sclerosis impression material, produce the space thus, and generation impression material not tight attachment can not be carried out the probability that good die is obtained to the phenomenon of patient's intraoral desired locations thereby exist.If the diameter of manhole 6 is less than 3mm, then do not produce following effect: thus silicone impression material or alginate impression material being loaded in the pallet and patient's intraoral desired locations being pushed when obtaining die, thereby fully entering into manhole 6, impression material is held.Therefore, this diameter is not preferred.If this diameter surpasses 6mm, it is too many that then impression material enters into manhole 6, and produce impression material not tight attachment can not carry out the probability that good die is obtained to the phenomenon of patient's intraoral desired locations thereby exist.
Reference numeral 7 indication elongation end side through hole, this elongation end side through hole be arranged on such as lower straight line near the end near in the side, this straight line will be in the two ends of bottom 1 be arranged in connecting near the end of the bottom side of the elongation through hole 5 at side place of end that outer wall 2 is connected with inwall, this extends end side through hole perpendicular to the axial direction setting of the bending of bottom 1, and has the length of width and the 5mm to 15mm of 1.0mm to 3.0mm.Because end side through hole 7 is set, so the impression material that is loaded in the pallet enters into the elongation end side through hole 7 of two ends of pallet, thereby firmly kept, do not produce the defective that two impression materials in the end trend towards being stripped from.In the elongation end side through hole 7 that arranges in order to realize above-mentioned effect, in the situation of width less than 1.0mm of elongation end side through hole 7, do not produce following effect: thus silicone impression material or alginate impression material are being loaded in the pallet and patient's intraoral desired locations is being pushed when obtaining die, impression material fully enters into end side through hole 7, thereby is held.Therefore, this width is not preferred.In addition, if this width surpasses 3.0mm, it is too many that then impression material enters into end side through hole 7.Therefore, produced in two ends of bottom 1 impression material not tight attachment and exist and can not carry out the probability that good die is obtained to the phenomenon of patient's intraoral desired locations.
Handle portion bottom Reference numeral 8 indications are arranged in the basal surface of an end of 1.This handle portion can be fixed to bottom 1, the pre-position of the basal surface bottom perhaps can being configured to be willing to be removably disposed in described in the 2011-217753 such as the Japanese patent application laid that the applicant of present patent application proposes in 1.
Above-mentioned according to the impression tray for regional area of the present invention, by loading paste silicone impression material or alginate impression material in the bottom 1 between outer wall 2 and the inwall 3 and patient's intraoral desired locations being pushed carry out in the situation that die obtains, impression material is expanded to outer wall 2 sides and inwall 3 sides, and contacts with the undercut portions of the below at edge 4.Therefore, after impression material sclerosis, can prevent that impression material from upwards floating and peeled off from pallet.In addition, impression material suitably enters into each elongation through hole 5 that all part under edge 4 arrives bottom 1 and has the width of 1.5mm to 4.0mm at outer wall 2 and inwall 3, and enter into the bottom 1 of each centre that all is formed on the interval that is arranged in the adjacent elongation through hole 5 that is arranged on outer wall 2 and inwall 3 and have the manhole 6 of the diameter of 3mm to 6mm, and the sclerosis impression material is held.Width at elongation through hole 5 is that 2.0mm to 3.0mm and length are in 2 to 3 times the situation of width and in the situation that is spaced apart 3mm to 18mm between the elongation through hole 5, and the effect of above-mentioned maintenance sclerosis impression material uprises, and these situations are preferred.
In addition, in two ends of bottom 1, be loaded in impression material in the pallet enter into each all perpendicular to the axial direction of the bending of bottom 1 be arranged on straight line that the bottom side end than the elongation through hole 5 that will be arranged in two ends that outer wall 2 is connected with inwall connects near the end near side and have the width of 1.0mm to 3.0mm and the elongation end side through hole 7 of the length of 5mm to 15mm, and firmly keep impression material.Therefore, do not produce the defective that the impression material in two ends of pallet trends towards being stripped from.
As mentioned above, at the impression tray for regional area according to the present invention, except being arranged on along the effect of the undercut portions that causes of edge 4 in bottom 1 side of each upper end of outer wall 2 and inwall 3, the impression material that is loaded in the pallet also enters into the elongation through hole 5 that each all arrives bottom 1 and arrange with certain width and interval in the part of outer wall 2 under edge 4, enter into the bottom 1 of each centre that all is formed on the interval that is arranged in the adjacent elongation through hole 5 that is arranged on outer wall 2 and inwall 3 and have the manhole 6 of special diameter, and enter into each all perpendicular to the axial direction of the bending of bottom 1 be arranged on straight line that the bottom side end than the elongation through hole 5 that will be arranged in the place, two ends that outer wall 2 is connected with inwall connects near the end near the elongation end side through hole 7 of side, and firmly keep impression material.Therefore, because the impression material that can prevent from hardening upwards floats and peeled off from pallet, so can obtain die with high accuracy.

Claims (5)

1. impression tray that is used for regional area comprises:
Outer wall (2), the outside of described outer wall (2) bending of (1) from the bottom is erect and is arranged, described bottom (1) is formed and the similar broad warp shape of alveolar ridge shape, and described bottom (1) forms at the corresponding length place of three continuous teeth of patient at least has roughly the evenly plane surface of width, and described outer wall (2) at one end reduces the height of described outer wall (2) in the side gradually, thereby reaches the height identical with the height of described bottom (1);
Inwall (3), described inwall (3) is erect via circular arc shaped part (3a) from the inboard of the bending of described bottom (1) and is arranged, described inwall (3) leaves the direction inclination of described bottom (1) with respect to the upper end simultaneously, and described inwall (3) all reduces the height of described inwall (3) at two in distolateral gradually, thereby reaches the identical height of height with described bottom (1); And
Described impression tray is made of plastics,
Wherein along each upper end of described outer wall (2) and described inwall (3), the edge (4) of the height with 0.01mm to 1mm is set in the side of described bottom (1),
In described outer wall (2) and described inwall (3), form elongation through hole (5), each elongation through hole (5) all part under described edge (4) arrives described bottom (1), and each elongation through hole (5) all has the width of 1.5mm to 4.0mm, form the mode of described elongation through hole (5) so that the distance between the adjacent through-holes (5) is 2 to 5 times of width of described through hole (5) and roughly even
In described bottom (1), in being arranged on described outer wall (2) and described inwall (3) and the centre at interval that is formed the described adjacent through-holes (5) of described elongation through hole form manhole (7), each manhole (7) all has the diameter of 3mm to 6mm;
And such as lower straight line near the end near side in perpendicular to the axial direction of the bending of described bottom (1) elongation end side through hole (7) is set, described straight line will be arranged in described outer wall (2) and be connected the connecting near the bottom side end of respectively extending through hole (5) of side of end of inwall (3) in the two ends of described bottom (1), each elongation end side through hole (7) all has the length of width and the 5mm to 15mm of 1.0mm to 3.0mm.
2. the impression tray for regional area according to claim 1, the width that wherein is arranged on the described elongation through hole (5) in described outer wall (2) and the described inwall (3) is 2.0mm to 3.0mm, length is 2 to 3 times of described width.
3. the impression tray for regional area according to claim 1 and 2 wherein is arranged on the 3mm to 18mm that is spaced apart between the described elongation through hole (5) in described outer wall (2) and the described inwall (3).
4. the impression tray for regional area according to claim 1, the height at wherein said edge (4) is 0.1mm to 0.3mm.
5. the impression tray for regional area according to claim 1 wherein along the described upper end of described outer wall (2), arranges the edge (4 ') of the height with 0.01mm to 1mm in the opposition side of described bottom (1).
CN201310110401.8A 2012-03-30 2013-04-01 For the impression tray of regional area Active CN103356300B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-080307 2012-03-30
JP2012080307A JP5876356B2 (en) 2012-03-30 2012-03-30 Local impression tray

Publications (2)

Publication Number Publication Date
CN103356300A true CN103356300A (en) 2013-10-23
CN103356300B CN103356300B (en) 2016-05-18

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CN201310110401.8A Active CN103356300B (en) 2012-03-30 2013-04-01 For the impression tray of regional area

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JP5876356B2 (en) 2016-03-02
EP2644153B1 (en) 2016-11-02

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